Machiai seiji (待合政治): teahouse politics. The Heibonsha World Encyclopedia notes that politicians and political merchants used machiai, teahouses for entertaining, so much that the term was coined.
In an interview with President Online, Oharu, the 84-year-old owner of a bar in Akasaka, recalled that in the Shōwa era Akasaka was a town of ryōtei, exclusive restaurants. Each faction of the Liberal Democratic Party had its fixed ryōtei. The Tanaka faction went to Chiyoshin, the Nakasone faction to Nasu. Of these ryōtei, she said: Zenbu naku narimashita. “They are all gone.”